>> pete williams is reporting that they have made this arrest of suspect.story? >> pete williams is reporting that they have made this arrest of suspect. they may have him in court later. we believe he's from tupelo, mississippi. we're not sure on his name. but pete williams reporting that story and of course cnbc will have all the details for you on that 8:00 p.m. news conference as well as this late breaking development in the ricin letters. >> thanks very much. now, president obama's gun control agenda was dealt devastating blow today. 54 senators including five democrats voted to defeat a proposal to expand background checks. >> a main setback for those in favor of heightening the rules. expanding gun background checks failed to win over the senate. it was a plan put together by senator joe manchin and pat toomey. it needed 60 votes to move ahead and it got only 54. president obama briefed the press shortly after the vote. he repeated the importance of gun control and expressed his own frustration. he even said the gun lobby willfully lied about the bil